Not bad at all, this song certainly deserves vocals on it. If you're planning to make a new mix, I wouldn't pan the guitars that much, especially the rhythm gtr.

Is it my ears or is the bass out of tune, or are you using some effect that makes it sound like it? From personal experience, chorus or flanger effects, with certain settings can make instruments sound out of tune.

c4c? https://www.ultimate-guitar.com/forum/showthread.php?t=1659103
This is cool. I liked it straight away. The chords are nice and the changes all work. As stated above, get some vocals on it. It will be even better for it.
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